Lamp.



L. SGHBPMOES.

LAMP. 7 APPLICATION FILED MAYZI, 1912.

' Patented Nov. 5, 1912.

WITNESSES L C KQA K 2% ATTORNEY L. scHEPMofis. LAMP. APPIIIJOAT1011 FILED MAY 21, 1912.. 1 1,043,256, I Patented NOV. 5 1912.

2 BKEETE-BHEET 2.

- 14 11 T'd. 9 I I 13 9' /l/ 2 19 if UNITED sT TEsPATE T OFFICE.

LI NDSLEY Samaria/ions, or HAsBRo cK' HEIGHTS, NEW JERSEY, ASSIGNOR T0 SAFETY can HEATING & LIGHTING COMPANY, ACORPORATION or NEW JERSEY.

LAMP.

speciacation of Letters Patent.

Application filed May 21, 1912. Serial No. 698,725.

a citizen of the UnitedStates, residing in Hasbrouck Heights, county of Bergen, and State of New Jersey, have invented new and useful lu'iproveinents in Lamps, of which I the follmving is a' description.

My invention pertains to that classof 'lamps wherein it is desired to support a source of illumination and direct the rays thereof in a predetermined manner.

My invention has for a part1cular ob ect to provide such a lamp wherein a source of illumination will be properly supported and reflecting-or refracting means retained in proper operative relation to said source in such manner as to properly direct the rays in desired directions and be protected in such manner that the reflecting or refracting surfaces will not have their functions altered by contact with dust, moisture or showing in detail a portion of the lamp shown in Figs. 1 and '2. Fig. 4: is a top plan of a portion of the lamp as appearing in section in Fig. 2.

Referring particularly to Fig. 1, 1 represents a shell or body portion which may possess any desired ornamentalcharacteristics and which may be held in place by suitable screws indicated at 2, will hereinafter more plainly appear. The shell member 1 is preferably provided with ornamental extending members 3, which carry the annular ring 4, supporting the latch 5, which holds the bezel ring (3 closed against the ring 4, as will hereinafter more plainly appear. The bezeljli carries the-li ht transmitting bowl 7. represents a light transmitting dome heldin placcwitlfiri the llltbfi'lbGI'S 3 and may he preferably of i seini transparcnt material,

as-for example, a colored or opal glass. A portion ofthe (lo ne- "8 is shown broken away in l"i 1; so as to expose the outer. su rface of the reflecting members-f --earried in proper position within the (l )I-1l0"8. -T hei outer surting members which are exposed to the atmosphere and most liable to become/coveredpr coated with dustor Il'lOlStlllG maybe readily cleaned, and furthermore, the bowl 7 and dome 8 are so designed and disposed that their outward surfaces are not utilized in the reflection or refraction of the light from the source in desired directions but are as near as possible mere transmitting surfaces as will hereinafter be more plainly brought out, it being well understood that moisture or dust upon such mere transmitting surfaces will not cause as great an effect upon the proper distriluition of the light as when the reflecting or retracting surfaces are coated.

Referring to Fig. 2, ll represents a spider, casting or supporting n'lcniber which may be secured against a ceiling or deck 10, as by means of belts or screws iiulicatcd at -10. The supporting member ll is provided with a central portion 12 into which is threaded a nipple 13 which may be held in proper positionfas by i'neans of lock nut 14. The nipple 13 carries a socket or receptacle 15 adapted to support a proper source of illuinination, as for example, the electric lamp or bulb 16 which may be connected electrically with any suitable source of supply as by the wires 17 passing through the nipple 13. The supporting member ll is provided with a sleeve portion is turned to lit the internal bore of the neck of the shell 1 as indicated at 19. The member 11 is formed with an annular flange 20 which is turned true upon its face in such manner as to engage the-annular portion 21 of, the shell 1, which is also turned true so that when the members 20 and 21. are pressed together a dust tight joint is formed at their junction. The open'ngs for engaging the screws 2 are so disposcl that when the face of the flange 21 is pressed against the face of the flange 20, the screws will-proper] y register with their're'spectiveopenings, as shown in Fig. 2, and inorder to more defin'itelyinsure a'dust tight joint between 20 and 91., the support- Patented Nov. 5, 1912.

ing member-'11 is provided-with lugs 22 shown plainly in Figs. 3 and? t, into'which are'ni'ade up the screws 23 p'assmgthrough screws 23 the flange 21 is firmly held againstthe flange 20. The interior of vthe shell 1 is provided with a shoulder 24 against which the screws 25 hold a spun shell of light material indicated at 26. [The member 26 carries a series of flexible fingers 27 adapted to be sprung into the annular recess in the flanged neck 28 of the reflecting member- .9. The. inner surface of the reflecting ment- 0-;ber 9 ispreferably smooth so that the same ,may be readilycleaned when necessary. The

outer surface thereof is provided with re fleeting prisms 29 adapted to reflect the rays from the bulb 16 in desired directions, as will hereinafter more plainly appear. The member 9 is held firmly in place by the annular'member 30 provided with an upturned lip and held in place as'by screws- 31 made up into the'ring 32 held in place against the internal face of the ring 4- as by screws 33. The ring 32is provided with an annular felt ring or gasket 34 upon which rests the dome 8 and a felt ring 35'is carried within a groove in the inner portion of the shell 1, so as to engage the upper part of I the dome 8, as clearly shown in Fig. 2, in

v such manner that asthe screws 33 are made up and the ring; 32'. drawn into place, the dome 8 is'held firmly between the felt rings i or gaskets '34 and so as to form dust proof joints at both contacts with the saidrings. 36 represents a hinge which unites one side'of the bezel 6 with the ring 4, while the opposite side of the bezel is engaged by the latch 55, the hinge 36 and the latch 5 cooperating to hold the bezel properiy in place to form a dust proof joint between the bezel '6 and the ring 4 indicated'at 41. The

inside diameter of the bezel 6 is such that the bowl 7 may pass therethrough while the flange 37 of the bowl rests upon a felt packing or gasket 38 attached to the bezel, as indicated. The bowl 7 is firmly-held ,in .place within the bezel as by means of the spun metallic ring 39 fastened to the bezel as by screws 43. The inner portion of the bowl 7 is provided with prisms 42 for difl'uS- ing the light emitted by the bulb 1.6.

In practice my lamp may be assembled, put up and operated as follows :-If desired, the socket 15 may first be wired. and then made up with the nipple 13 into the member 11 and firmly held therein as by lock nut 14,

the wire 17 being readily adapted for makink connection with an external CIICLllt. The

from the shell of the lamp. The spider or into properposit-ion between the fingersi27 and then the ring 30 may be placed in its proper position against the rim of the dome. 9, as shown'in Fig. 2, and .the screws '31 made up into the ring 32, in such manner as to firmly hold the ring 30 and the dom /9.

in their properpositions. The bowl 7 may be passed through the opening-in the bezel 6 and the lip 37 of the bowl will'rest upon the soft gasket 38. The ring 39 may then -be placed in its proper position and the screws-43 made up into thegbezel 6 which 'may oause'the soft gasket 38 to yield somewhat and form a dust tight joint between the lip 37 'and'the bezel; If-desired, the '30 parts may'be assembled a's above outlined at the factory and the supporting member 11 may have its sleeve 18 inserted into the neck of the shell 1 and the screws 2 and 23 maybe made up as shown in Fig. 2. proper bulb. I 16 may then be made up intothe socket 15 and the lampwill be complete and may be kept in stock or'shipped as a complete fin: ished article comprising all the glassware and all parts necessary for operation-.- If the lamp be completely assembled as outlined above, in order to place the same-in use, it is simply necessary to proceed as follows: The latch 5 may besprungopen and the bezel 6 together with the bowl 7 lowered, and the bulb l6 removed; The screws 23.

and '2 may then be withdrawn and the spider 11 and socket 15 may be removed supporting member 11 may then'be fastened. against the calling or deck as by means of screws or bolts 40, drawn up in such man 5 ner as to draw the spider tightlyagainst the deck so as to form a-dust tight joint between the upper ringportion of the spider and the deck. a gasket being used if desired.

The'wires 17 may then bezconnected with any suitable external circuit.

may then he slipped over the sleeve l8until the flange 21 abuts thefla'nge 20 of the supporting member then'the sh ell 1 may be revolved until the screws 22 may be inserted, as shown in Fig. 2, and 'th'esescrews may then be properly made up. P The screws 23 may then be made up'into' the bosses 22 and when thebulb 16is screwed into the socket 15, the lamp is ready for use. It will thus be obvious thatif at any time it be desired the entire shell 1, together with all of the I The shell 1 together with the glass ware carried thereby glassware of the lamp; that is, the dome 8,.

the reflector 9 and theibowl 7 may be removed as a unit from its operative position by merely removingthe bulb 16 and withdrawing the screw 23 "and the screws 2 and that this removal of the shell will leave the spider or supporting member together with the socket and its electrical connections in their operative positions undisturbed. However, it will also be noted that any of the glass Ware may-"bermoved from my lamp and replaced without necesssity of removal of the shell 1 from its operative position.

The prisms 29 are so designed and arranged that they reflect most of the rays which thcyreceive from the bulb 16 downwardly into the bowl 7 but allow a portion of the light to pass through and illuminate the.translucent dome 8 and thus serve to a degree which may be determined by design to illuminate the deck or ceiling. The direct rays of the bulb 16, together with those returned by the reflecting member 9, which fall upon the prisms 42 of the bowl 7. are so reflected and refracted as to be dispersed in a desired manner which is usually in the form of a cone having considerable divergence, as the divergence is preferably'increased by the prisms so as to light a considerable area. lVhen my lamp is assembled and operated as above mentioned, it will be noted that if any dust or moisture pass between the upper flange of the shell 1. and the deck or ceiling, it cannot enter the lamp inasmuch as the upper face of the supporting member 11 is firmly bolted against the deck or ceiling and forms a dust tight ""jointtherewith and flange20 and surface 21 of the member 1 are drawn together so as to form a dust proof joint. Dust or moisture cannot enter between the upper portion. of the dome 8 and the inner surface of the shell 1 on account of the dust tightjoint made with the gasket 35. No dust can enter between the lower portion of the dome 8 and its supporting means, owing to the dust tight joint made between the gasket 1:34: and the lower edge of the dome 8. The bezel 6 is closely fitted to the ring 4 as indicated at 4:1 and no dust can enter the lamp at this joint, while dust is prevented from coming in between the bowl 7 and the bezel by the tight joint secured between the lip of the bowl and the gasket 38. It is, therefore, obvious that moisture and dust cannot enter the lamp so as to become deposited either on the prisms 29 of the reflecting dome 9 nor upon the inner prisms 42 of the bowl 7. However if, for example, a small amount of dust in time should filter its way into the lamp and become deposited on the inner .surface of the member 9 or the prisms of the bowl 7, the inner surfaces of these members may be cleaned by releasing the latch 5 and opening the lamp. The dust and moisture which may accumulate on any of the external light emitting surfaces of the lamp, may be readily removed at any time as these surfaces are perfectly smooth and do not hold dust like the prismatic reflecting and rcfract-ing surfaces, and furthermore a slight accumulation on these surfaces does not interfere with the operation of the lamp as much as would the accumulation upon the prismatic surfaces.

' are smoothand readily cleaned.

I do not wish in anyway to limit myself to the exact details of construction set forth in this specification which is given to illustrate one type of lamp comprehending my invention, for it will be obvious that wide departure in the way of details may be made without departing from the spirit and scope of my invention which is as set forth in the following claims.

1. A lamp'comprchending a light-lmlb'; a member surroundingsaid bulb and. adapted to reflect a portion ofthe rays" of said lamp and to transmit a portion of said rays therethrough; combined with a light-transmitting dome inclosing said member; and means for sealing the dome so as to protect said member from contact with extraneous materials.

2. A lamp comprehending a shell-portion provided with openings; means for supporting' a source of illumination within the I boundary of the shell-portion; a source of 100 illumination; a member between said source of illumination and said openings in the shell-portion adapted to reflect a portion of the rays of said source and transmit a portion thereof through said openings; combined with light transmitting means between said last-named member and said openings allowing rays to pass therethrough and preventing contact of extraneous material with said member.

3. A lamp comprehending a shell-portion provided wit-h openii'igs; means for supporting a source of illumination within the boundary of the shell-portion; a source of Y illumination; a member between said source 115 of illur ination and said openings in the shell-portion adapted to reflect a portion of the rays of said source and transmit a portion thereof through said openings; combined with light-transmitting means be- 120 tween said last-named member and said openings allowing rays to pass therethrough and preventing contact of extraneous material wi h said member and means for establishing a dust-tight joint between said trans- 125 mitting means and said shell.

4. A lamp comprehending a supportingmember adapted to be held against a surface to form a dusbtight joint therewith; a shellportion surrounding said supporting-por- 130 tion'and forming a dust-tight joint against the same; a source of illumination within said shell; a reflector within said shell adapted to reflect-a portion of the rays of said source and to transmit aportion thereadapted toreflect a portion of the rays of said source and to transmit a portion there- 10' through; and means carried by said shell for transmitting rays transmitted through said reflector and protecting said reflector from contact With extraneous matter, combined with a light-transmitting member adapted to receive direct rays from said source and rays returned by said reflector and transmit said rays therethrough and protect said source of illumination and a 'surface of said reflector from Contact with extraneous matter. 7'

7 6. A lamp comprehending a supportingmember; means for holding the same in a fixedposition; a source of illumination car-vriedby said member; a reflecting-member -forsurrounding a portion of said source of Illumination; a light-transmitting member fOIfSUIIOUIIdHlg a portion of said source of -lllumination-;-- means for carrying said reflecting member and said light-transmitting member in their operative relationship with respect to each other; and means for readily attaching said carrying-means to said supporting member to hold the reflecting and transmitting members in operative relation to the source of illumination, and allowing the carrying-means together with the parts carried thereby to be readil placed in operative relationship. with said supportingmember. v

7. A lamp comprising a source of light;

a supporting-member; an ornamental shell secured to and covering said supporting- .member, and carrying a light-transmitting dome; a reflecting-member supported by theornamental shell within the dome and surrounding the source of light; and a light-.

transmitting bowl secured to said shell and closing the bottom thereof and the bottom" of the reflecting-member.

8. Alamp comprising a source of light; a I

member supporting said source of light; an

ornamental shell carried by said source of light and supporting a light-transmitting dome; a reflector carried by said shell and 7 depending Within the dome; and surrounding the source of light; a bowl hinged to the bottom of the shell for closing the dom e'and the reflecting-memliier and a spring-catch for holding the bowl in closed condition. y

9. A lamp comprising a source of light;'a

supporting-member for said source of light;

a shell secured to said supporting-member carrying a light-transmitting dome; a 'refleetor secured within the dome and surroundin the source of light; a bowl hinged to the s ell; means for holding the dome closed across the'bottom' of the shell; and gaskets interposed between the dome and the shell and between the bowl and the shell for rendering the latter dust-proof;

LINDSLEY SCHEPMOES.

Witnesses:

MAXWEL GREENBERGER, E. E. ALLBEE. 

